css-tools is a suite of tools for managing a large collection of CSS. It doesn’t contain an editor, but is intended to be used alongside an editor. Use css-tools to find out what needs doing, then use your editor to do it. At a later date, plugins for popular editors may be created so as to streamline the workflow. At present, css-tools contains one program, 'cssi', which parses and searches selectors.
httpico is yet another lightweight HTTP server. It implements a few HTML rewriting rules delineated by '<?pico>' tags, and makes it fairly easy to add more straight into the C code. It does not have complete HTTP standards compliance. It also contains a 'genstats' log analysis tool.
ted (Tiny EDitor) is a lightweight commandline text editor designed for scripting. It's intended to be an easier-to-use alternative to "ed". It is lightweight, scriptable, and easily harnessed by shell scripts, but doesn't suffer from the chronic user-unfriendliness that characterizes ed. It is also slightly more featureful than ed, and includes multiple editing buffers and built-in script handling.